Saiki Weesa (彩木瑋嗣), better known by his stage name WEESA (イーサ), is a Japanese singer and performer.
He is a member of the group PSYCHIC FEVER.
Saiki Weesa was born on February 26, 2004. He is Moroccan-Korean.
In his youth, he started attending EXPG Nagoya.
On July 4, 2019, he made his first appearance as a member of PSYCHIC FEVER at the BATTLE OF TOKYO ~ENTER THE Jr.EXILE~ live concert at Makuhari Messe. On September 24 in the same year, he was announced as an official member of the group.
- Special Skill: Drawing
- Him and fellow group member JIMMY were born on the same day, 4 years apart.